package com.py.admin.gateway.filter;

import com.py.admin.gateway.util.AppJwtUtil;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.http.HttpStatus;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.http.server.reactive.ServerHttpResponse;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;
@Component
@Slf4j
public class AuthorizeFilter implements Ordered, GlobalFilter {


    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
        ServerHttpRequest request = exchange.getRequest();
        ServerHttpResponse response = exchange.getResponse();
        //判断是否是登录请求
        String path = request.getURI().getPath();
        log.info("---------->{}",path);
        if (path.contains("/login")) {
            //直接放行
            return chain.filter(exchange);
        }
        //获取token
        String token = request.getHeaders().getFirst("token");
        //判断是否存在
        if (StringUtils.isEmpty(token)) {
            //不放行
            response.setStatusCode(HttpStatus.UNAUTHORIZED);
            return response.setComplete();
        }
        //判断token是否有效
        int i = AppJwtUtil.verifyToken(AppJwtUtil.getClaimsBody(token));
        if (i == 1 || i == 2) {
            //过期
            response.setStatusCode(HttpStatus.UNAUTHORIZED);
            return response.setComplete();
        }
        //放行

        return chain.filter(exchange);
    }

    @Override
    public int getOrder() {
        return 0;
    }
}
